I have got myself into a difficult situation and can't decide the best way forward. I have been dating an older man who is under the impression that I am a girl but if I let him go between my legs he will find out that there is a bit more down there than he bargained for. I have spent a fortune on my image and breast implants etc and apart from my bits down below I am to all intent and purposes a woman.

He is getting quite serious about me and so far we have been into heavy petting, although when he goes to put his hand up my skirt I have so far stopped him, making the excuse that I am not ready yet to make love. I must admit he is a bit confused as I do put my hand inside his trousers and pull his cock out and work it. To make him cum I go down on him and suck him off and swallow his orgasm knowing that will at least dampen his ardour a bit. He can't understand why I go that far and yet won't let him push his cock inside me and it is getting a bit harder to resist or explain my reluctance. Last week I was so carried away that when he put his hand on the inside of my legs I almost let him go all the way up until I stopped him at the last minute which left us both frustrated and I could see that he was getting a bit angry. Now to prove his commitment he wants me to move him with him and is awaiting my answer. I so much want to feel his cock up my hole and cum inside me but am afraid that I might lose him if I confess that I am not all what I appear. What should I do?